On average, listings lease in the $30's per square foot per year. The National City submarket is experiencing a an increase in rates. In the last 3 months, the median rate went up $7 per sqft per year. That's a 30% rise in rent.
Compared to the rest of the San Diego market, the National City submarket has lower rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 5 listings have been made available, which means listings might be going fast. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,010 sqft. Most properties in this area are around 2 stories. Most buildings in this area were built in 1974 and are Class B.